package com.example.jinmingwu.a180503_progressdialog;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ProgressBar;


public class MainActivity extends AppCompatActivity {

    private ProgressBar firstBar=null;
    private ProgressBar secondBar=null;
    private Button myButton=null;
    private int i=0;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        firstBar=(ProgressBar)findViewById(R.id.firstBar);
        secondBar=(ProgressBar)findViewById(R.id.secondBar);
        myButton=(Button)findViewById(R.id.myButton);
        myButton.setOnClickListener(new ButtonListener());
    }

    class ButtonListener implements OnClickListener{
        public void onClick(View v) {

                if (i == 0) {
                    firstBar.setVisibility(View.VISIBLE);
                    secondBar.setVisibility(View.VISIBLE);
                    firstBar.setMax(150);
                } else if (i < firstBar.getMax()) {
                    firstBar.setProgress(i);
                    firstBar.setSecondaryProgress(i + 10);
                } else {
                    firstBar.setVisibility(View.GONE);
                    secondBar.setVisibility(View.GONE);
                }
                i+=10;

        }
    }
}
